Hi,
I am sorry you are in this very confusing situation. On the one hand, it is great that his family are involved with him and his recovery, on the other hand, I couldn’t deal with that much interference.
As a person who has children and a whole life with an addict, my biased opinion would be to walk away now whilst it’s just you who has been hurt. Unfortunately it is harder to walk away once you have children with someone. One of the major issues is worrying about the children when they’re with the addict and you’re not there.
I do believe in second chances and that people can change but in your case where you are completely free, I would walk away for your own sanity.
Good luck with whatever you choose to do x